I'm not quite sure that I follow your rebuttal. Are you claiming that Nielsen did not do a study of 395,000 listeners over the age of 12 using diaries? Also, could you help me understand why revenue declines for spot advertising has anything to do with the number of actual listeners to the radio on the FM band? Your original claim was that "almost no one listens to FM radio" but that's clearly not the case... failure to monetize the consumers have a particular media is not at all an indication of consumption of that media. 91% of Americans could be listening to public radio for all we know.
I listened to FM radio last week - once, for about 10 minutes.
15 years ago, I listened for an hour and a half a day. As a teenager, I'd listen throughout the day. Teenagers generally don't do that anymore - Spotify, Pandora, etc., have supplanted FM radio as the delivery channel of most music (and news).
The survey still records accurately that I listened in the last week, but I'm no longer a profitable listener. Advertising prices reflect that decline.
